| PartNumber | CD74HC166M | CD74HC166M96 | CD74HC166MG4 |
| Description | Counter Shift Registers High Speed CMOS 8-Bit Shift Register | Counter Shift Registers High Speed CMOS 8-Bit Shift Register | Counter Shift Registers Hi Sp CMOS 8B Par-In Ser-Out Shift Reg |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| RoHS | Y | Y | Y |
| Counting Sequence | Serial/Parallel to Serial | Serial/Parallel to Serial | Serial/Parallel to Serial |
| Number of Circuits | 1 | 2 | 1 |
| Number of Bits | 8 bit | 8 bit | 8 bit |
| Package / Case | SOP-16 | SOP-16 | SOP-16 |
| Logic Family | HC | 74HC | HC |
| Logic Type | CMOS | CMOS | CMOS |
| Number of Input Lines | 9 | 9 | 9 |
| Propagation Delay Time | 160 ns, 32 ns, 27 ns | 160 ns, 32 ns, 27 ns | 160 ns, 32 ns, 27 ns |
| Supply Voltage Max | 6 V | 6 V | 6 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Packaging | Tube | Reel | Tube |
| Function | Shift Register | Shift Register | Shift Register |
| Operating Temperature Range | - 55 C to + 125 C | - 55 C to + 125 C | - 55 C to + 125 C |
| Series | CD74HC166 | CD74HC166 | CD74HC166 |
| Width | 3.91 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Number of Output Lines | 1 | 1 | 1 |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | 2 V to 6 V | 2.5 V, 3.3 V, 5 V |
| Product Type | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| Factory Pack Quantity | 40 | 2500 | 40 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004998 oz | 0.004998 oz | 0.004998 oz |